Radiation Oncology is a specialized medical field that focuses on treating cancer and certain other diseases using high-energy radiation. Radiation oncologists carefully plan and deliver targeted radiation therapy to destroy or damage cancer cells while minimizing harm to surrounding healthy tissue. This discipline is often used alone or in combination with surgery, chemotherapy, or immunotherapy. Radiation Oncology treats a wide range of cancers, including brain, breast, lung, and prostate cancers, and also provides palliative care to relieve symptoms in advanced disease. Advanced technologies like IMRT, stereotactic radiosurgery, and proton therapy improve precision, effectiveness, and patient outcomes.